/** @file
 * Header file for GEL subtitle related API.
 *
 * @author mandy.wu 2010/08/16 (SUBT Y pos adjustment refinement)
 * @version 0.1
 */
#ifndef __GEL_SUBTITLE__
#define __GEL_SUBTITLE__

#include "gui_eng/stddefs.h"
#include "gui_eng/gui_engine.h"

#define GEL_SUB_RGN_WIDTH	(720)
#define GEL_SUB_RGN_HEIGHT	(480)

/** Subtitle size */
typedef enum {
	GEL_SUB_SIZE_1 = 0,	/**< Large */
	GEL_SUB_SIZE_2,		/**< */
	GEL_SUB_SIZE_3,		/**< */
	GEL_SUB_SIZE_4,		/**< */
	GEL_SUB_SIZE_5,		/**< */
	GEL_SUB_SIZE_6,		/**< Small */
	GEL_SUB_SIZE_LAST
} GEL_SUB_Size_e;

/** Subtitle display position in vertical */
typedef enum {
	GEL_SUB_POSY_1 = 0,	/**< Top */
	GEL_SUB_POSY_2,		/**< */
	GEL_SUB_POSY_3,		/**< */
	GEL_SUB_POSY_4,		/**< */
	GEL_SUB_POSY_5,		/**< */
	GEL_SUB_POSY_6,		/**< Bottom */
	GEL_SUB_POSY_LAST
} GEL_SUB_PosY_e;

/** Subtitle color */
typedef enum {
	GEL_SUB_COLOR_RED = 0,	/**< R:255 G:0 B:0 A:255*/
	GEL_SUB_COLOR_GREEN,	/**< R:0 G:255 B:0 A:255 */
	GEL_SUB_COLOR_YELLOW,	/**< R:255 G:255 B:0 A:255 */
	GEL_SUB_COLOR_BLUE,		/**< R:0 G:255 B:0 A:255 */
	GEL_SUB_COLOR_PINK,		/**< R:255 G:0 B:255 A:255 */
	GEL_SUB_COLOR_CYAN,		/**< R:255 G:255 B:255 A:255 */
	GEL_SUB_COLOR_LAST
} GEL_SUB_Color_e;

/* Subtitle attributes */
extern LANGName_t		gstSubCodepage;
extern GEL_SUB_PosY_e	geSubPosY;
extern UINT8			gbSubLineSpacing;

/* Subtitle resources */
extern PALENTRY			gstSubPal[256];

/**
 * Initialize a region for subtitle rendering.
 *
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_SUB_InitializeRgn(void)__attribute__ ((warn_unused_result));

/**
 * Finalize the region for subtitle rendering.
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_SUB_FinalizeRgn(void)__attribute__ ((warn_unused_result));

/**
 * Clear subtitle .
 *
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_SUB_ClearAllString(UINT8 bUpdateNow);

/**
 * Set a fontbase group number for subtitle rendering.
 *
 * @param eFontStyleNum  The fontbase group to indicate an index of UI fontbase resources for subtitle rendering.
 * the param should be one of  TV_Standard, TV_Small, TV_Large or TV_Game(the TV_FONT_Style_t);
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_SUB_SetFontbase(FontStyle_e eFontStyleNum)__attribute__ ((warn_unused_result));

/**
 * Get the subtitle fontbase group number.
 *
 * @param pdFontSizeNum  The pointer to get subtitle fontbase index of the UI fontbase resources.
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_SUB_GetFontbase(UINT32 *pdFontSizeNum)__attribute__ ((warn_unused_result));

#if 0
/**
 * Set subtitle codepage for native string rendering.
 *
 * @param pstCodepage  The codepage to be set to subtitle native string rendering.
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_SUB_SetCodepage(LANGName_t pstCodepage)__attribute__ ((warn_unused_result));

/**
 * Get subtitle codepage.
 *
 * @param pstCodepage  The pointer to get subtitle native string displayed codepage.
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_SUB_GetCodepage(LANGName_t *pstCodepage)__attribute__ ((warn_unused_result));
#endif
/**
 * Change subtitle color.
 *
 * @param eColor	The String color to be drawn.
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_SUB_ChangeColor(GEL_SUB_Color_e eColor)__attribute__ ((warn_unused_result));

/**
 * Change subtitle size.
 *
 * @param eSize		The String size to be drawn.
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_SUB_ChangeSize(GEL_SUB_Size_e eSize)__attribute__ ((warn_unused_result));

/**
 * Change subtitle position.
 *
 * @param ePosY		The target position in vertical to be rendered.
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_SUB_ChangePos(GEL_SUB_PosY_e ePosY)__attribute__ ((warn_unused_result));

/**
 * Change subtitle line spacing.
 * @param bLineSpacing Spacing between each subtitle line, legal values [0,30].
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_SUB_ChangeLineSpacing(UINT8 bLineSpacing)__attribute__ ((warn_unused_result));

/**
 * Change subtitle character spacing.
 * @param bCharSpacing Spacing between each character, set 0 to disable this setting, that is,
 *                     use the default character spacing of target fontbase.
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_SUB_ChangeCharSpacing(UINT8 bCharSpacing)__attribute__ ((warn_unused_result));

/**
 * Subtitle rendering.
 *
 * @param pStr		Pointer to the string to be rendered.
 * @param eStrType	The String type.
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_SUB_DrawString(UINT8 *pStr, GEL_DynStrType_e eStrType);


/**
 * Set subtitle background to a specific color and on/off.
 * The 255th color in subtitle palette will be replaced by the specific color.
 *
 * @param pHandle	Handle to a control object.
 * @param stColor	The color to be set.
 * @param bBGDraw	The flag to specific whether draw background.
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_SUB_SetBackground(GEL_Color_t stColor, BOOLEAN bBGDraw)__attribute__ ((warn_unused_result));
//GUIResult_e GEL_SUB_SetCodepage(LANGName_t stCodepage);

#endif /* __GEL_SUBTITLE__ */